Hi. I'm new to the forum and did not find my answer. I have a 2004 fourtrax rancher at. Front tires are 24x8x12 and rears are 24x10x11. The bike came with spare bighorn 2.0 25x8x12 front and 25x10x12 rear. Since rims are cheaper than rubber, am I safe getting 12" rims for the rear or will it wreck something in the drivetrain?